For Enock Mangezi cow dung was just another form of manure and floor polish. But a new biogas digester at the home of this 46-year old resident of Pahlela, a village in Zimbabwe's south eastern Chiredzi

The City of Harare needs at least $300 million to fully fix its water and sewer reticulation infrastructure to meet the ever increasing demands of its growing residential base over the next two to three